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Added checks before generating styled typeface

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Other changes:
  • Added flag for enabling merging of styles
This commit is contained in:
Cyrus Bakhtiari-Haftlang 2020-10-06 09:29:44 +02:00
parent 6284264ca3
commit 4a3444073e
1 changed files with 31 additions and 17 deletions
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40
markwon-core/src/main/java/io/noties/markwon/core/spans/CustomTypefaceSpan.java
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@ -23,34 +23,48 @@ public class CustomTypefaceSpan extends MetricAffectingSpan {
return new CustomTypefaceSpan(typeface);
}
@NonNull
public static CustomTypefaceSpan create(@NonNull Typeface typeface, boolean mergeStyles) {
return new CustomTypefaceSpan(typeface, mergeStyles);
}
private final Typeface typeface;
private final boolean mergeStyles;
public CustomTypefaceSpan(@NonNull Typeface typeface) {
this(typeface, false);
}
public CustomTypefaceSpan(@NonNull Typeface typeface, boolean mergeStyles) {
this.typeface = typeface;
this.mergeStyles = mergeStyles;
}
@Override
public void updateMeasureState(@NonNull TextPaint paint) {
updatePaint(paint);
}
@Override
public void updateMeasureState(@NonNull TextPaint p) {
updatePaint(p);
}
@Override
public void updateDrawState(@NonNull TextPaint tp) {
updatePaint(tp);
public void updateDrawState(@NonNull TextPaint paint) {
updatePaint(paint);
}
private void updatePaint(@NonNull TextPaint paint) {
final Typeface old = paint.getTypeface();
final int oldStyle;
if (old == null) {
oldStyle = Typeface.NORMAL;
final Typeface oldTypeface = paint.getTypeface();
if (!mergeStyles ||
oldTypeface == null ||
oldTypeface.getStyle() == Typeface.NORMAL) {
paint.setTypeface(typeface);
} else {
oldStyle = old.getStyle();
}
final int oldStyle = oldTypeface.getStyle();
@SuppressLint("WrongConstant") final int want = oldStyle | typeface.getStyle();
final Typeface styledTypeface = Typeface.create(typeface, want);
paint.setTypeface(styledTypeface);
}
}
}